Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 470: | \[{3^{470}-1\over2}\] | 22 × 112 × 61 × 1223 × 5171 × 16921 × 21997 × 256057 × 5112661 × 11321831 × 96656723 × 1287586151 × 1534179947851<13> × 717838945155421<15> × 1641374046359401<16> × 7061686540772491<16> × 30168205545535224185322498361<29> × 1816324897099196693903839041516429235091<40> × 984743307245363285977763833773659863079671<42> |